Barb-wire machine



(No Model.) 7 Sheets-Sheet 1.

J. STUBBE.

BARB WIRE MACHINE. No. 326,806. 4 Patented Sept. 22, 1885.

MllllEBS E 5 T u. PETERS mnphar. Washington. D a

(No Model.) 7 Sheets-Sheet 2.

J. STUBBE.

BARB WIRE MACHINE.

Patented Sept. 22,1885.

MN? 6. 3 6. 3 m m E "m w 3. Q .N w R u U H PETERS, Phowulho n har.Washington, I10.

(No Model.) 7 Sheets-Sheet 3. J. STUBBE.

BARB WIRE MACHINE. I No. 326,806. Patented Sept. 22, 1885.

' Illllllll Illllllll i lllh minim M1119 55 E 5 W Y @Wwm (No Model.) 7Sheets-Sheet 4.

- J. STUBBE.

BARB WIRE MACHINE. No. 326,806. Patented Sept. 22, 1885.

II/I M11112 5 5 E 5- W12 n. PETERS, Fhum-Lmlognphsr. wnmn mn, u. c.

(No Model.) 7 Sheets- Sheet 5. J. STUBBE.

BARB WIRE MACHINE.

Patented Sept. 22, 1885.

(No Model.) 7 Sheets-Sheet 6.

J-. STUBBE.

BARB WIRE MACHINE.

No. 326,806. Patented Sept. 22, 1885.

Fgaz.

M111]? 5 5 E S- Elllln 1'. X a. 73W,

N. PETERS, Pholwhlhogflpher. Wauhingion. D. c.

(No Model.) 7 Sheets-Sheet 7. J. STUBBE.

BARB WIRE MACHINE.

Patented Sept. 22, 1885.

N. PETERS. Pholvlithopiphor, Wlih'mmm D. C.

llnirsn STATES ATENT Fries.

JOHN STUBBE, OF PITTSBURG, ASSIGNOR TO THOMAS B. KERR, OF ALLE- GHENYCITY, PENNSYLVANIA.

BARB-WIRE MACHINE.

SPECEPICATZON forming part of Letters Patent No. 326,806, datedSeptember 22, 1885.

Application filed June 3,1885. (No model.)

To all whom, it 'nuq concern.-

Be it known that I, JOHN STUBBE, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and useful 5Improvement in Barb-\Vire Machines; and I do hereby declare thefollowing to be a full, clear, and exact description thereof.

The object of my invention is to simplify, cheapen, and improve themanufacture of i barbed wire. I will describe it with reference to theaccompanying drawings, in which Figure 1, Sheet 1, is a perspective viewof my improved machine, partly in section, on the line .2 z of Fig. Fig.2 is a detached 15 perspective view of a part of my machine whichproduces intermittent motion of parts of the mechanism. Fig. 3, Sheet 2,is a plan view of the machine. Fig. 4 is a sectional view of theintermittent gearing device on the 20 line x 00" of Fig. Fig. 5 is asectional view on the line a m in a plane at right angles to thesectional plane of Fig. 4. Fig. 6 is a plan view, and Fig. 7 an edgeview, of the slotted arms marked 8 S in Figs. 2 and 4. Fig. 8,

2 Sheet 3, is a side elevation; and Fig. 9, Sheet 4, a verticalcross-section of the machine on the line 50' x of Fig. 3. Fig. 10 is asimilar section on the line ;2 y of Fig. 3. Fig. 11 is a perspectiveview of the bed-knife detached.

0 Fig. 12, Sheet 5, is a longitudinal axial sec tion of the strand-wi reguide and barb-twister, on the line 10 w of Fig. 3, and on the line 0600 of Fig. 13. Fig. 13 is an end View of the same. Fig. 14 is aperspective view of the end of the 5 rotary wrapper shown in Figs. 12and 13.

Figs. 15, 16, and 17 are end views of the barbwrapper when it hasaccomplished a oneseventh, a whole, and one and one-half revolutions,respectively. Fig. 18 is a vertical 4o crosssection on the line z z ofFig. 12, showing the position of the barb when it first enters thewrapper. Fig. 19 is alongitudinal vertical section of the moving knifewhich severs the barbs, showing its relation to the 5 barb-wrapper. Fig.20 is a horizontal cross section on the line 1 y of Fig. 19. Fig. 21 isa side elevation of the barbwrapper shown partly in section. Fig. 22,Sheet 6, is a plan view of the machine shown in connection with astrand-wire twisting and reeling device. Fig. 23 is a side elevation ofthe same, some of the parts shown in Fig. 22 being omitted for the sakeof clearness. Fig. 24, Sheet 7, is

a detached perspective view of the barb-eutting knives andwrapping-tube. Fig. 25 is a detached side view of the moving knife andthe blade of the bedknife, showing their relative situations. Fig. 26 isan enlarged detached View of the part marked 0 in Fig. 12. Fig. 27 is alongitudinal section of the wrappingmandrel, omitting the part shown inFig. 26.

Like letters ofreference indicate likcparts.

In all the figures of the drawings except Figs. 15, 16, and 17, theseveral parts of the machine are shown in the position which they occupywhen the barb has been inserted between the strands and is beingsevered.

Referring to the drawings, A A, Figs. 3, 22, and 8, represent therotatory spools, of ordi- 7o nary construction, from which the twostrandwires a a are fed into the machine by means of feed-rollers a to",situate in front of the spools.

Between the feed-rollers and the spools A 7 5 is a guide-box, (6, havinga cylindrical bore and an outwardly-flaring month. In passing throughthis box the wires are brought into adjacent alignment before passingbetween the rollers. Thelowerfeed-roller, a", is driven by a transverseshaft, a, to which it is keyed, and the axis of the upper feed-roller,a, is driven by a gear-wheel, of, which meshes into a pinion, a, on theshaft a, the rotation of the two rollers being such as to draw the wirestrands from the spools and to feed them to the other parts of themachine. (See Figs. 3 and 9.) The gear-wheels a a are preferably madeintegral with their respective feed-rollers, as shown in the drawings.(See Fig. 10.) The axes of the feed-rollers are in the same verticalplane, and in order to regulate their pressure upon the interposedstrand the upper roller is journaled in bearings B, provided withcollars b, movably mounted in upright 5 posts or standards If. Acrossbar, 1), connects the upper ends of two vertical standards whichform part of the journalboxes B, and on another cross-bar, 12 whichconnects the ends of the posts I), is mounted a cam, b, 109 whichengages the cross-bar b By depressing a handle, I), of this cam from anupright to a horizontal position the eccentricity thereof will act onthe crosshead b forcingit and the upper feed-roll on its slidingbearings down against the face of the lower one. The fixed posts b areprovided with suitable inclosing coiled springs, 1), bearing against theunder side of the collars b, which oppose a resistance to the action ofthe cam, and, when the press ure of the latter is released, raise theupper roller with its bearings away from the lower roller. Thecross-head b is preferably made in form of a bow-spring, as shown inthedrawings, so that as strand-wires of unequal gage or any otherobstruction pass between the feed-rollers they may cause the rollers toyield somewhat. This device for moving the feedroller, an edge view ofwhich is shown in Fig. 8, is more clearly illustrated by a rear view inFig. 9, and by a side view of a similar device for regulating thebarb-wire feedrollers,'F, shown in Fig. 8. From the feedrollers the wireis drawn through a guide tube or box, a, Fig. 3, into a largerguidetube, 0, which is in the same axial line. The guidetube is fixed tothe bed-plate of the machine by means of a set-screw, 0 or otherwise,and on its forward part is a rotatory shell, 0, which forms thebarb-wrapping mechanism. This shell is loosely mounted on the guidetube,so as to be rotatory thereon, and

is provided with a circumferential toothed pinion, 6-, which gears intoand is driven by rotation of a cog-wheel, c. The wrapping shell ormandrel c is held ,in place upon the stationary tube 0 by means of anarm or arms, 6,which bear against the outer end ofthe pinion a, and holdit against a stationary collar, 0, which abuts against a part of the boxor drum 5,hereinafter to be described. Thepinion c is either madeintegral with the barb-wrapping tube 0, or is affixed to it by aset-screw, 0. (See Fig. 12.) The latter tube extends somewhat forward ofits axial guide-tube c, and at its end is provided with longitudinalopen slots 0, which are diametrically opposite each other, and are madethrough the shell of the tube parallel with its axis. At the end of eachof these slots is a circumferential slot or recess, 0 communicating withits longitudi-- nal slot, and made at right angles therefrom. Theserecesses are opposite and extend in the same direction, the inner andouter ends of one being diametrically opposite the inner and outer endsof the other, respectively. The length of each recess is aboutone-seventh of the circumference of the wrapping-tube 0. At the end ofthe inner fixed guide-tube, c, is a transverse partition, 0 whichextends diametrically across the tube and tapers backward, thus dividingthe latter into two parts, through which the strand-wires pass, and theyare thus kept separate and prevented from being twisted together back tothis point. The preferable mode of. constituting this socalled partitionc is by use of the device shown in Fig. 26,which is a small core orplug, 0', of the same diameter as the internal diameter of thewrapping-tube, and capable of fitting stationarily therein. The plug isperforated longitudinally with parallel holes m m, which taper fromtheir rear to their forward ends, so that the several strand-wires maybe easily inserted into them. For the same purpose the rear'end of theplug is beveled. As shown in Fig. 12 of the drawings, the forward endsof the stationary guide-tube c and the rotatory wrapping-tube are madein detachable pieces, since these parts should be easily adjustable, andmay be needed to be removed for repairs. The inner ends ofthelongitudinal slots 0 are preferably in the same transverse plane withthe end of the guide-tube c and with the outer end of its partition 0 sothat the strand-wires opposite to this point are always separated andready for the insertion of a barbblauk.

The barb-wire is fed from a spool, F, Figs. 3 and 9, into the transverseslot-s a of the wrapper, between the separated strands, by feed-rollersf F, similar in construction and operation to the strand feed-rollers aa". The upper barb feed-roller, F, rotates in movable bearings which areso provided with collars f, mounted upon fixed vertical posts f, as tobe capable of being raised or lowered thereon. The postsf have across-head, f and a cam, f, pivoted thereto, and provided with aleverhandle, f, by raising or lowering which the cam is made to act on atransverse spring, f which is connected with the movable collars f, thusdepressing the latter against the coiled springs f", or raising themtherewith. The

upper feedroll, F, is thereby made adjustable relatively to the lowerroll, f, in the same manner and for the same purposes which have beendescribed with respect to the strand feedrolls a a". These feed-rollersFf and a a are all actuated by the same intermittent gearing, so thatwhen sufficient wire has been fed to make a barb of theproper length.the rotation of both sets of rollers stops. Acam, g, Fig. 9, thereuponimmediately actuates a movable knife, h, Fig. 19, which severs thebarb-blank from its strand, andat the same time the barbwrapper 0 beginsto revolve, thereby wrapping the barb around the strand-wires, as shownin Figs. 15, 16, and 17. \Vhen the wrapping of the barb has beencompleted by a one and one-half revolution of the tube 0, theintermittent gearing, before referred to,

.stops its rotation and starts the rotation of the feed-rollers a a andf F. The barb thus atfixed to the strand-wires then moves from the slots0 of the barbwvrapper through the hollow axis d of a rotatory spinner,D, Figs. 22 and 23, to a reel, E, which is mounted in the frame of thespinner transversely to its axis. The rotation of the spinner Discontinuous, and serves to twist the two strand-wires, t0- gether. Therotationof the reel E intermits with the intermissions of motion of thefeed rollers aa", and during the motion of these rollers winds thetwisted and barbed wire upon its drum and draws it through the machine.I will explain the operation of these parts more fully hereinafter.

Poweris communicated to the machine preferably by a belt which operatesa belt-wheel, d, 011 the front end of the spinner, and is thencetransferred by a crossed belt, cl", and another belt, d, from the rearaxis of the spinner to a shaft, G. On the shaft G is a cam, g, whichoperates the knife lever H, Fig. 1. Theend of the arm of the knifeleveris provided with a wheel or roller, 71 which rests within a groove onthe periphery of the cam, a part of which groove is curved laterally, asshown in Fig. 8, so that when the rotation of the cam brings the end ofthe lever to the curved part the knife at the other end may be movedbackward. The knife-lever H extends above the bed-plate of the machine,and is there provided with lateral arms or trunnions 71?, which arejournaled in bearings i in 'the block 13, which supports the bed-knifeit, Figs. 1 and 11. From the middle part of the trunnions theknife-lever extends in a curved line to clear the other mechanism, andcarries at its end a knife, h, which normally is situated in the samehorizontal plane and a little forwardof the bed-knife h, so that whenactuated by the cam g the knife-lever will force its knife toward thebed'knife it against the barb-strand, and will sever the barb-blank.

By reference to Figs. 2i and 25 of the drawings it will appear that theknife-lever H is pivoted at a point which is in about the same verticalline as are the knife h and the roller h which works in the groove ofthe cam g. The object and result of this relative situation is to causethe knife h at the upper end of the lever to be moved in a substantiallyhorizontal right line when the lower end of the lever is actuated by thecam g. The barb is thus out without the jamming of the two knives. Themoving knife h is secured to the end of the lever H in a vertical slot,h, and is made adjustable therein by a set-screw, h, which works againstthe knife from above. The barb-strand wire is fed from the rollers Fftoward the recess 0 of the barb-wrapper transversely across thecuttingedge of the bed-knife in an.upwardly-inclined direction, so thatwhen cut by the moving knife it the cut may be lengthwise and beveled toa point, as shown in Fig. 24. This inclination is secured by mountingthe guide-tube of the barb-strand upon the inclined face of aguide-block, i, which is affixed to the block i of the bed-knife. Thebedknife is affixed to the block '5 horizontally and longitudinally withthe machine by means of a plate and bolt, 5', and at the end of theknifethere isavertical guide-bar, 2' Fig. 11, which is mounted within agroove in the front of theknife-bloek i, and has its end upwardlyinclined in the same angle with the angle of inclination of the guideblock This bar is adjustable in its vertical slot by means of aset-screw, i, and it should be so fixed that the wire passing over itsinclined end may cross the cutting-edge of the horizontal bed -knife.The adjustability of this guide-bar permits the length of the point ofthe cut barb to be regulated within certain limits, for if the bar beraised by its set-screw it will raise the strand until it crosses theouter corner of the horizontal bed knife,when a long barb will be cut.By lowering the guide-bar in its groove the course of the wire islowered and made to cross the cutting-edge at points farther inward,thus producing correspondingly shorter barbs. The moving knife and theupper parts of its lever are clearly shown in Figs. 19 and 24 of thedrawings, in which it appears that the knife is mounted in the verticalslot h at the end of the lever, and has a horizontal cutting-edge in thesame plane with the blade of the bedknife.

On each side of the barb-wrapping tube 0 is a wrapping-guide, whichextends vertically from the bed-plate ol" the machine. The outer end ofeach of these guides h It extends partially around the wrapper c on aline concentric therewith, and is curved backward on opposite sides ofthe same. These guides are situate opposite to the diametrical slot 0,and the guide-tube i is so inclined toward the back of the machine (seeFigs. 3, 20, and 24) that when the barb is fed through the recess a ofthis slot both projecting ends of the barbblank may lie back of theguides. The intermittent gearing which aetuates the pinion c" is sotimed that when the wrapping-tube 0 stops, the ends of the recesses care in the course of the barb-wire. \Vhen, therefore, the barbstrand isfed into the wrapping-tube from the feed-rollers, it will pass betweenthe strands to, and will lie diagonally across the longitudinal slot 0and in the ends of these recesses 0 so as to project from both sides ofthe tube, Fig. 13. \Vhen at rest in this position, the barb is severedfrom the strand. During the feed of the barb-strand the strand-wires arebeing fed from the spools A, while the knifelever H and thewrapping-tube c are at rest. As soon, however, as the feed of the barbceases, the strand-wire feedrollers stop, the tube 0 begins to revolve,and the knitelever H is actuated by its cam g and cuts off thebarb-blank, when the wrapper 0 begins to revolve. In cutting the blankthe knife h engages it, forces it back over the face of the bed-knifeagainst the rear side of the recesses 0 and holds it there until apartial revolution of the tube in the direction of the arrow carriesthese recesses away from the blank and causes the latter to be engagedby the sides of the opposite axial slots 0. In Fig. 15 of the drawingsthis operation is illustrated, being there performed by a one-seventhrev0lution of the wrapping tube or mandrel. The further revolution ofthe wrapper 0 will carry the ends of the blank around the inclosingstrand-wires, which are kept stationary by the central guide-tube, c,and its partition a and will wrap the blank in the manner shown in Fig.17 of the drawings. \Vhen the wrapping-tube c has reached the positionshown in this figure, having completed a revolution and a half, itsintern'iittent gearing will cause it to come to rest. The feed-rollers aa will then immediately start and carry the cable forward, causing theaffixed barb to be drawn out of the wrapper, the barb-wire feed-rollerscommence to rotate, and the operations are continued, as beforedescribed. During the wrapping of the barb-blank the action of theguides h It is to prevent the blank from overlapping or being wound uponitself, and because the blank is fed back of them to hold it in properrelative position with the cable until after the cutting off of the barband the commencement of the wrapping process. The ends 71. and h of theblank in revolving engage the inclined faces of the guides h" andh,respcctively, and by their inclination are pushed backward so as towrap hclically around the strand-wires. This will be readily understoodby reference to Figs. 15, 16, and.

17 of the drawings. The purpose of the transverse recesses c is to allowa small interval of time to elapse between the commencement of rotationof the wrapping-mandrel, and the be ginning of the wrapping operation,during which interval the barb blank is severed. The outer side of theslot 0 holds the barbblan-k during this interval and guides it in itsentrance into the wrapper. It is not, however, indispensable, for theslot may, with some disadvantage, be made to extend lengthwise entirelyto the outer end of the wrappingtube. As before stated, the barb-wire isfed into the wrapping-tube 0 so as to rest at the ends of these recessesfarthest from the slots 0, and consequently a small period of rotationof the tube, equal in are to the length of the recesses c is idle so faras wrapping the blank is concerned. hen the blank engages the ends ofthe recesses, the wrapping action begins. The proper position of therecesses for the entrance of the barb-blank is secured by timing itsactuating mechanism to turn the Wrapping-tube a number of revolutionswhich is a multiple of one-half. Thus in the manufacture of the style ofbarb shown in the drawings one and a half revolution is given to thewrappingtube, and it is clear that at the end of each wrapping operationthe recesses 0 will occupy the same relative positions to the course ofthe barb-wire, though of course at the end of each period a differentrecess will be presented toward the barbstrand. During theintervalbefore mentioned the barb is cut, and any slight inaccuracy in thetiming of the knife-lever cam g is corrected. The moving knife steadiesthe barbblank, and adjusts it from an inclined position into one atright angles to the strandwires by pressing it against the sides of theslotted recesses 0 For this purpose the ec centricity of the cam issomewhat elongated, so that the knife may not be retracted immediatelyon cutting the barb.

The construction and operation of the de vice which producesintermittent motion of the feed-rollers and barb'wrappin g mechanism isas follows: The main power-shaft G, which actuates the knife-lever camg,is journaled in suitable bearings under the bed-plate of the machine,and terminates in a pinion, g, which meshes into and drives agear-wheel, 2. The latter gear-wheel is loosely mounted upon its shaft 34, so as to rotate thereon without moving the shaft, and is situatedwithin a drum or casing, 5. On the face of this gearwheel, and borderingon its periphery, are two studs, 6 7, one being on each face of thewheel and the situation of each being about diametrically opposite theother.

The shaft on which the gear-wheel 2 is mounted consists of two parts, 3and 4, which are swivel-jointed, so as to be capable of retatingindependently of each other and independent-1y of the rotation of thegear-wheel 2.

Keyed to the shaft3 within the drum 5, and adjacent to the gear-wheel 2,is a plate or disk, 8, which is of the same diameter as the internaldiameter of the drum. The plate 8 is separated somewhat from thegear-wheel 2 by a sleeve, 10, and is provided with radial slots 11 and12, which are situate diametrically opposite to each other. In each ofthese slots is mounted a block or dog, which projects from both sides ofthe plate. These blocks 13 14 are movable intheir respective slots 11and 12 toward and away from the axis of the plate,

and their function is to afford means for engaging the stud 6 on thegear-wheel 2 with the plate 8, and thereby communicating the motion ofthe gear-wheel to the shaft 3, to which the plate is affixed. On theside of the drum 5 next the plate 8 is a fixed annular cam, 15, throughwhich the shaft 3 passes, the cam being concentric with the axis of theshaft. The eccentric part of the cam 15 consists of a depression orrecess, 16, preferably situated on its lower side. The cam 15 andslotted plate 8 are so arranged relatively to each other that themovable dogs or blocks 13 and 14 in rotating with the plate bear againstthe periphery of the cam. ltadially opposite to the recess 16 of the cam15 is another cam, 1.7, fixed to the shell of the drum 5, and having itseccentricity convex, so as to be a counterpart of the concaveeccentricity of the annular cam 15. (See Fig. 4.) On the other side ofthe plate 8 is a spring-catch, 18, arranged tangentially to the plate 8and in the path of revolution of the stud of the gear-wheel 2'and ofthose parts of the movable dogs 13 and 14 which project to the innerside of the plate 8. On its under side the spring catch has a notch orrecess, which is diametrically opposite to the position of the fixedconvex cam 17. The spring catch 18 is pivotall y mounted within arecess, 19, at the upper side of the drum 5, and is provided with asuitable spring, 20, which exerts a downward pressure thereon. Themotion of the catch is, however, limited by a stop-pin, 21, whichconfines it within the recess at such a position that its free end iswith in the path of revolution of the stud 6, so that when this stud inits course reaches the catch it will raise it upon its axis. Thusconstructed,

the operation of this device is as follows: Supposing the stud 6 on theside of the gear-wheel 2 to have engaged the dog 14 in the radial slot12 of the plate 8, its rotation will move the plate and the shaft 3, towhich it is affixed, the dog then rotating in contact with theconcentric portion of the annular cam 15. Vhen, however, the dog 14meets with the convex cam 17, it will be moved in the slot 12 by theaction of this cam into the opposite concavity 16 in the annular cam 15,thereby disengaging itself from the moving stud 6. At the same instantthe other dog, 13, which has been moving with the plate 8 around theconcentric part of the cam 15, having engaged the free end of thespring-catch 18, will raise it and slip into its recess. The spring-armwill then fall and engage the dog 13, thereby holding it and stoppingthe rotation of the plate 8 instantly. (See Fig. 4.) The stud 6, havingbeen released from the dog 14, will continue to rotate freely withoutmoving the plate 8 during a semi-revolution of the gear-whee1 2t'. 6.,until it reaches the free end of the spring-arm 18- when it will raisethis arm far enough to release the dog 13 from the recess. It will thenengage this dog and will carry it with it in its further rotation,thereby turning the plate 8 and its shaft 3 untilthe dog is pushed intothe recess of the cam 15 and released from the stud by this cam. Duringthis time the dog 14 will have been raised in the slot 12 out oftherecess 16 by rotation of the plate 8, and will move around theconcentric part of the annular cam and in the path of the stud until itreaches the spring-catch 18, which will grasp it and lock the plate 8,as before described. The locking of the one dog and the release of itsopposite by the stud 2 are simultaneous, so that rotation of the plateand of its shaft are instantaneously stopped. The stud 2 then continuesto revolve freely for another semirevolution until it again raises thecatch 18 and engages the dog 14, when it will recommence to move theplate 8. The operation is thus continued indefinitely, as before described. The function of the slotted plate 8 is therefore to act. aslever-arms for communicating motion from the continuously-movinggear-wheel 2to the shaft 3, and the function of the movable dogs 13 and14 is to alternately connect and disconnect the plate from the gearwheelat successive semi-revolutions of thelatter,thus causing regularlyintermittent periods of rotation and rest of the driven parts. The shaft3, which is driven by rotation of the slotted plate 8, extends outsideof the drum 5 and terminates in a toothed pinion, which meshes into anddrives a gear-wheel, 9 Fig. 3. The latter gearing is affixed to alongitudinal shaft, 9', which is mounted in suitable pillow-blocks onthe bed-plate of the machine. This shaft at one end is connected withand drives the lower feed-roller, f, of the barbfeeding mechanism; andthis, through cogwheels F F, similar to the cogs a a of the strand-wirefeed-rollers, drives the upper barbroller, F, Fig. 9. At the other endof the shaft 9 is a pinion, g affixed thereto by means of a spline orfeather, g, which enables the pinion-wheel to be moved along the shaftwithin certain limits. The pinion -wheel 9 meshes into one of the rowsof teeth of a crown gearwheel, 9, whose shaft a extends transverselyacross the machine and drives the lower feedroller, a The side of thecrown-whcel g has two concentric series of gear-teeth, g and Fig. 3. Bymoving the pinion -wheel 9 on the feather 9 until its teeth engage theinner series of teeth on the crown-wheel, it is evident that rotation ofthe shaft 9 will impart a more rapid rotation to the crown-wheel shaftand to the feed-rollers a a than if the pinion meshes into the outerseries of teeth. By thus changing the position of the pinion upon theshaft 9 a faster or slower rotation may be given to the strand-wirefeed-rollers, and the length of wire fed during each period of theirrotation increased or diminished. It will then be apparent that thefeed-rollers a a and Ff are all actuated by the rotation of theintermittently-moving plate 8, that the motion of these parts issynchronous, and that they operate during one half of the rotation ofthe main power-shaft G and are at rest during the other semi revolution.Vhile the strandwires are passing through the guide-tube c, the barbfeed-rollers feed their wire through the slot 0 and between theseparated strands. The length of the strands fed relative to the lengthof the barb-blank may be determined by the relation of the diameters oftheir feedrollers, and is regulated by changing the gearing of thepinion g from one series of crownwheel gear-teeth to the other. Duringthe feed of the strand-wires and of the barb-wire the barb-wrappingmandrel c is stationary; but immediately on the stoppage of these feedsthe mandrel begins to revolve and wraps the barb around the strands. Thealternate motion of these parts is secured by a duplication of theintermittent gearing device formerly described, and is illustrated inFig. 1. The shaft 4, which is swivel-jointed to the end of the shaft 3within the drum 5, is provided with radially-slotted plate 9, similar inconstruction to the radially-slotted plate 8, before described, butsituate on an opposite side of the revolving gear-wheel 2. The slots ofthe plate 9 are also provided with dogs or blocks 22 and 23,which aremovable radially within the slot and project from both sides of theplate. On the side of the drum is an annular cam, 24, having a recess orconcavity similar to the recess 16 of the cam 15, the periphery of whichcam is in the path of rotation of the i11- ner end of one of theprojections of the dogs, so that as they move around it its concen tricpart may keep them out in their slots in the path of the stud 7 on thegear-wheel 2. At the base of the casing and opposite to the recess ofthe cam 24 is a convex cam, 25, and at the top of the drum,parallel withthe springcatch 18, is a spring-catch, 27, having a recess adapted tocatch and confine one of the projections of the blocks 22 and 28. Theplate9 is held away from the side of the gear-wheel 2 by a sleeve, 26.The parts in this segment of the drum 5 are situated in the samerelatlve positions and are in the same horizontal plane as theircorresponding partsin the segment first described, the plates 8 and 9being parallel. The only difference is, that the stud 7 on the one faceof the gear-wheel 2, which operates the dogs 22 and 23, is diametricallyopposite to the situation of the stud 6 on the other face of thegear-wheel. The plate 9 is operated intermittently by the stud 7 in thesame manner as the plate 8 is operated by the stud 6. The consequenceis, that at the instant that the stud Ghas carried its dog 14 intocontact with the convex cam 17 and has been disengaged from it, and theplate 8 has been locked by the engaging of the spring-catch 18 with thedog 13, the stud 7 on the opposite I side of the plate will have raisedits springcatch 27 and will have released and engaged the confined dog22. During the next semirevolution of the gear-wheel 2 the stud Gwillmove freely without rotating the plate 8 or its shaft 3, while the stud7 will turn the plate 9 and the shaft 4, to which it is affixed, becauseof the engagement of the latter stud with the block 22. At the end ofthis period the block 22, having engaged the convex cam 25,will beforced into the eccentric recess in the annular cam 24, and thusdisengaged from the stud 7, while the opposite block,23,having beenraised from the recess onto the concentric part of the cam by rotationofthe plate, will have reached and become locked by the notchedspring-arm 27. This will stop the plate 9 and its shaft 4 instantly; butthe stud 6, having by this time reached the spring-catch 18, willrelease and engage the block 14 and recommence to rotate the plate 8 andits shaft 3. On the end of the shaft 4 which projects from the drum 5 isthe cog-wheel c, which drives the barb-wrapping mandrel c. It istherefore clear that the continuous rotation of the shaft G, acting onthe geanwheel 2,will alternately actuate the mandrel c and both pairs offeed-rollers. The mandrel will be at rest while one semi-revolutionofthe gear-wheel 2 impels the plate 8 and the feed-rollers; but as soonas this semirevolution is complete and the feed-rollers have beenstopped the other semi-revolution of the wheel 2 will actuate the plate9 and the mandrel c.

As shown in the drawings, the gear-wheel c is of three times thecircumference of the pinion 0 on the mandrel 0, so that thesemi-revolution of the gear-wheel may rotate the mandrel once and a halfto produce a barb of the character shown in the drawings, though ofcourse the intermediate gearing may be so timed as to rotate the mandrela greater or less number of times to produce barb-wire of a differentvariety. The cam g is adjusted upon the shaft G so that its lateraleccentricity will engage the end of the knife-lever H simultaneouslywith the commencement of the stud 7 to turn to the plate 9 and revolvethe mandrel c, and the eccentricity is made long enough to cause the knife to hold the barbblank against the inner side of the recess c vuntil the mandrel has made a one-seventh revolution, as beforedescribed.

The operation of twisting the wire strands is performed by thecontinuous rotation of the rotary spinner D, to the reel E of which thestrands are secured. Therevolution of thespinner is preferably in theopposite direction to that of the mandrel c, this being secured bycrossing the belt d as shown in the drawings. The function of the reelvE is to wind the twisted and barbed wires upon its drum and to draw themthrough the machine. Its rotation is influenced by that of thefeed-rollers a a so that when they stop the reel stops also. This isdone as follows: The front journal-shaft of the rotary spinner D, whichis the axis of the belt-wheel d, is hollow. Through ita horizontalshaft, 0 extends to the end'of the machine, where it is provided with awheel, 6, bearing on the surface of which is a brake, c or similarfriction device for retarding its revolution. The other end of the shaft0 within the periphery of the spinner is provided with a miter-wheel, c,whichgears into a similar pinion-wheel, e, the axis of which isjournaled to the sides of the spinher-frame. The latter gearing isconnected by suitable gear-wheels, e, to the axis 0 e of the reel E.Ordinarily the brake-wheel e is held stationary by the friction of thebrake e Revolution of the spinner D will carry the beveled periphery ofthe miter wheel 6 around that of the stationary cog e andwill impart arotary motion to the former Wheel and to its shaft. This also rotatesthe gearwheels 6, and they in turn revolve the reel E on its axis andcause the twisted strands to be wound thereon. One of the reasons forthis arrangement of the reel is to compensate for its increasingdiameter as the wire is wound upon it. This increase causes the reel todraw the wire more rapidly from the machine, and if it were drivendirectly by rotation of the spinner D would break the strip or themachine. When, however, the strain on the twisted strands caused by itsincreased rapidity of winding has reached a certain point great enoughto overcome the resistance of the brake e the wheel 6 will turn with themiter-Wheel 6 upon its axis. In such case it is clear that themiter-wheel e will turn around the periphery of the wheel e Without theresultant rotation of the reel which I have described. When the strainon the strands is slackened by the feed-rollers a a, the wheel 6 andmiter-wheel 6 come to rest and the reel commences to revolve freely. Theeffect of this is to keep-the strands in a constant state of tension andin proper condition for the adjustment of the barbs. Another importantresult of this arrangement is to stop the reel when the motion of thefeed-rollers a a stops.

The stoppage of these rollers is positive, since they are actuated bygearing a a and as the upper feed-roller is pressed upon the lower onetheir friction will exert a considerable strain on the wire strand. Thisstrain will also be exerted on the reel E, and will cause thefrietion-wheel 0 to overcome its brake and turn, thereby stopping thereel until the feed-rollers again begin to move. The pressure of thebrake 6 upon the wheel 6 is regulated by a cord, 6 which is connectedwith the brake, and passes thence to a suitable brake-lever or ratchet.

In Fig. 9 of the drawings I have shown means for directing the course ofthe barbblank into the wrappingtube. It consists in pivoting theguide-block i by means of a pivot, i, on which it may be moved, so as togive its surface any desired inclination.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, in a barb-wire machine, of a hollow rotatory wrapperfor wrapping the barbs on a cable whose strands are arrangedlongitudinally within the wrapper, mechanism for feeding the strandsthrough the wrapper, barb-feeding mechanism for feeding the barb-wireinto the wrapper and between the strands, and the flexed barb-guidepieces h If, substantially as and for the purposes described.

2. The combination of the rotatory wrapper of a barb-wire machine,having slots for the entrance and exit of the barb-blank, knives forsevering said blank after it has been fed into the wrapper, the movingknife arranged to operate transversely to the course of the barb strandand longitudinally with said wrapper for the purpose of cutting, moving,and holding said barb, substantially as and for the purposes described.

3. The combination, with feed-rollers for feeding the barb-wire towardthe cablestrands, a knife for severing the same, and a wrapper forsecuring the barb-wire to the cable-strands, of a guide-block, 2',movable, so as to change its inclination to the horizontal, for thepurpose of directing the barbstrand relatively to the wrapper andregulating the length of the point out thereon, substantially asdescribed.

4. The combination, with the feed-rollers of a wire-barbing machine anda shaft for driving the same, of a crown-wheel mounted on said shaft anda pinion movable from one series of teeth on said wheel to another,substantially as and for the purposes described.

5. A rotatory wrapping-tube for barb-wire machine, having a hollow tubefor passage of the strand-wires, and axial slots 0 and elongatedtransverse s'lots 0 in combination with feeding mechanism for causingbarb-wire to be fed thereinto, substantially as and for the purposesdescribed.

6. The combination, in a barb-wire machine, of two revoluble shafts, 3and at, each provided with lever-arms having lugs or blocks capable ofmotion toward or from the axis of revolution, with an interposeddriving-disk, 2, having driving-studs on each side and cams for throwingthe lugs or blocks into and out of the path of revolution of the studs,whereby an intermittent rotation is imparted to the shafts, mechanismfor feeding the cablestrands, and mechanism for feeding the barbstrand,both of said mechanisms being connected with and actuated by one of saidrevoluble shafts, and mechanism for wrapping the barb actuated by theother of said shafts, whereby a regularly-intermittent rotation isimparted to each of these parts, substantially as and for the purposesdescribed.

In testimony whereof I have hereunto set my hand this 1st day of June,A. D. 1885.

JOHN STUBBE.

V i tncsses:

W. B. Conwru, JNo. K. SMITH.

